Choke-operating device



April 29, 1924.` AQJZQ@ A c.`U. GRAMELSPACHER CHOKE OPERATING DEVI CE Filed Nov. lO 1922 AIITTOR ENCE itl'. GBELSLPACHER, OF LAFAYETTE, XNDILNA.

cHoxa-ormrmenn'vrca.

application niet november 1o, 1922. serial no. encara.

To all whom it may concern.'

Be it known that l, CLARENCE v U. GRAMaLsrAcHER, a citizen of the United States, residing at West Lafayette, in ,the county of Tippecanoe and State of Indiana,

. have invented certain new and useful Improvements in Choke-@peratng Devices;

.and ll hereby declare that the following is a full, clear, and exact description thereof, reference being had to .the accompanying drawings, which form part of this specification. f

This invention relates to means for operating the choke valves of carburetors for internal-combustion engines, and is especially adapted for use 1n connection with Ford engines, but may be readily adapted for use with other makes of internal combustion engines in which a carburetor is used.

All automobiles of the internal combustion type em loy some means whereby the driver may c oke the carburetor whenever desired. These means are usually located on the dash board or steering column of the machine. The object of the present invention is to do awa with the inconvenience of moving or bending the operators body in manipulating the choke rod, and toI eliminate the unsafe features of the resent system, especially in dense city tra c, wherein the driver is obliged to take -his eyes off the road to locate the, position of the choke on the dash board, and wherein the driver is also obliged to take his hands oi the steering wheel to operate said choke.

-A further object lis to provide means whereby the choke valve of the carburetor may be opened or closed, either separately or simultaneously with the feeding of the fuel, said means being so constructed and arranged that the choke valve may beoperated without shifting 4the drivers body.V

I will Iexplain the invention with reference to the accompanyin drawings which illustrate embodiments t ereof, to enable others to adopt and use the same; and summarize in the claims the novel features of construction, and novel combinations of parts for which protection is desired.

ln the drawings:

Fig. 1 is a diagrammatical view of a Ford engine equipped with my novel choke operating means.

Fig. 2 is an enlarged detail of the mechanical link motiOn.

Fig. 3 is an enlarged detail of the solenoid and core.

As shown in Fig. 1, the. carburetor side of an automobile engine is diagrammatically illustrated showing the carburetor CA attached to the intake manifold M of the engine E. Carburetor C is provided with .the usual choke valve C1 mounted in the air duct thereof on a shaft C2, said shaft C2 bein provided on its outer end with a bell cran C3. To one arm of the bell crank is attached a horizontal rod C4 passing through the radiator R of the machine, said rod C* being provided on its outer end with a knob Cs exterior to the radiator, so that when the operator is cranking the machine, by piulling the knob C5 `the choke valve of 4t e carburetor will be manipulated to enrich the mixture 'of air and gas passing to the combustion spaces of the cylinders.

To the other arm of the bell crank C8 is attached a substantially vertical rod C the upper end of which is attached to one 'arm o a second bell crank C7, pivotally mounted on the front side of the dask board D of the machine. To the other arm of bell crank C7 is attached a short lever Ca extending through the dash board D, and likewise-provided with a suitable knob on its outer end, so that by pulling the lever Cs the choke valve will be operated through the bell cranks C3, C" and through rod C, to enrich the mixture of air and gas in the carburetor during the starting of the'engine, all the foregoing construction being part of the usual engine equipment.l

As shown, in Figs. 1 and 3 the choke may be operated electrically. A solenoid S, comprismg a coil 1 and a slidable core 1d, is mounted in a suitable frame 1", preferably having yholt holes l1" adaptedto receive bolts for fastening the frame to the radiator R, of the machine-as shown in Fig. 1. To the outer end of core 1 is secured a forked arm 1' adapted to. straddle the choke rod C. When. the solenoid is mounted in the position shown in Fig. 1, the outer forked end of, said arm 1 is adapted to enga e collars or stops' 1t attached to the cho e rod C, one collar being preferably mounted on each side of the forked arm 19 as shown. ln the forked end of the arm 1 is a cotter pin 1s to prevent disengagement of the chokerod from the forked arm 1.

Solenoid S is preferably connected in.

seriesV with the storage battery IB" of the vehicle, and interposed in said series circuit in a switch or` push button "l,l preferably mounted on the steering wheel, as shown. When switch T is closed the circuit through the solenoid will be closed and the core l ofthe solenoid will be drawn inwardly, thereby acuating the choke rod by the forked arm 1 engaging one of the collars l on' said choke rod, without the operators having to take his eyes olf the road, or move or bend his body, or to release the steering wheel, in order to operate the choke.

lf desired, the upper and lower ends of choke rod C'3 may be slotted as shown at C10, C11, in Fig. l, so thatv the operation of the solenoid S on the choke 'rod will not alter the adjustment of the choke lever C8 mounted on the dash board. A suitable spring R is preferably utilized totend to restore the .choke valve C to normal position against the action of the chokerods and solenoid.

ln the construction shown bracket 2 is lbolted to the side of the motor (preferably to the valve plate cover when used in connection with a Ford automobile) by means of a bolt 3, engaging a slot 2, thereb permitting said bracket to be adjusted Ongitudinally of the motor. Mounted in the bracket is a rock shaft 2b on one inner end of which-is keyed, or otherwise secured, a short arm 2, the outer end of which is attached to a rod 2d, extending up through the floor board of the machine, as shown in Fig. l, preferably adjacent the gas accelera` tor pedal (not shown), and having a head 2i on its top for engagement by the foot of the operator. On 1 thev other end ofr rock shaft 2b is secured an angularly adjustable arm 2J havin a forked outer end 2 adapted to straddle t e choke rod C intermediate collars or stops 1f mounted thereon By .de pressing the rod 2d with the foot the outer end of arm 2ewill be raised and the choke rod Ce elevated thereby actuating the choke valve'C of the carburetor.v

The pedal 2d is preferably so laced adjacent the gas accelerator pedal o the automobile, that the two pedals may be operated by the driver either separately or simultaneously without requiring shifting of the drivers body, or removal of his eyes from the road, or removal of his hands from the steering wheel. By closing switch 'l on the steering wheel, the same results will be accomplished.

What l claim is: 1. ln an internal combustion engine, the combination with a choke-valve; of` means attached tothe usual engine equipment without alteration' whereby said Ychoke valve may be operated by the operator separately from or simultaneously with the feeding of the fuel without the o erators having to bend bis body, or take is eyes o the road, or

Lacasse his hands oft the steering wheel, substantially as'described.

2. ln an internal combustion engine, the combination'with a choke-valve, and a choke rod for operating said valve; of a solenoid mounted adjacent said choke-rod, a core, forked connections between said core, and

rod whereby the core and rod are caused i `to move together in' the same direction, a switch on the steering wheel for closing a circuit through `the solenoid, whereby said choke valve may be operated by-the operator without his having to bend his body, or take his eyes of? the road, or his hands off the steeringwheel, substantially as described choke valve may be operated by the operator without his having to bend his body, or take his eyes olf the road, -or his hands oil' the steering wheel, and springy means for norf mally'closing said valve, said foot actuated `pedal being disposed adjacent the gas accelerator pedal whereby the pedals may be operated simultaneously or separately.

4. ln an internal combustion engine, as set forth in claim l, the means comprising a solenoid adjacent and parallel to said choke rod, and having a core provided on its outer lend with a forked arm, adapted to engage .said chokerod and cause same to move therewith in the same direction said solenoid being connected in circuit with the battery of the engine, a switch mounted on the steering wheel, and. interposed in the soienoid circuit, and spring means for normally closing said valve against the action of said choke-rod, substantially as described.

5. ln an internal combustion engine as set forth'v in claim l, the means comprising a `foot pedal, a rocker shaft mounted in bear# ings detachably attached to the engine cas-A ing, a forked arm on said rocker shaft enz gaging the choke rod, and connections between said rocker shaft and foot pedal whereby when said foot pedalis depressed the rocker shaft will be rocked, and .the

/choke rod actuated, and spring means for normally closing said valve against the ac- `tion of choke-rod, said foot pedal being lmounted adjacent the gas accelerator pedal. lln testimonythat Iclaim the foregoing as my own, ll aiiix my signature.

amener u. GRAMBISPACHER.

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